1 definition by Aidensman
In Japan, senpai (先輩) is a mentor or senior. "Senpai" is roughly equivalent to the Western concept of a mentor, though it does not imply as strong a relationship as these words mean in the West, and the term is used more widely and with greater "give" then the western equivalent term. More simply, it can be translated as "Senior" or "Elder"
by Aidensman February 5, 2015